Peerapatana Ketboonchoo. 2006. The service duration improvement in service industry through the approach of Lean Six Sigma : a case study of Pattana Medical Center. Field of Study Engineering Management, Chulalongkorn University;
Peerapatana Ketboonchoo. (2006) The service duration improvement in service industry through the approach of Lean Six Sigma : a case study of Pattana Medical Center . Chulalongkorn University/Bangkok.
Peerapatana Ketboonchoo. The service duration improvement in service industry through the approach of Lean Six Sigma : a case study of Pattana Medical Center. . Bangkok:Chulalongkorn University, 2006.
Peerapatana Ketboonchoo. (2006) The service duration improvement in service industry through the approach of Lean Six Sigma : a case study of Pattana Medical Center . Chulalongkorn University/Bangkok.